Cool Ajax - Web Development Tutorial Blog

When to use javascript querySelector and querySelectorAll functions?

JavaScript provides two useful functions, document.querySelector() and document.querySelectorAll(), to select and fetch data from the HTML nodes. Use Case For document.querySelector(): If you need to fetch data from an element with a specific class, then you can use the document.querySelector() method. For example- you want to get the width of a div with a class [...]

How to include an external javascript file in webpack config file?

Webpack provides a nifty and flexible way to bundle multiple javascript scripts into a single file. You can easily include any dependent npm packages and export them as a minified bundled file. However, you may need to include several custom javascript or scss files to the project. By using the following lines of code, you [...]

Fix the SELECT command denied to user ‘pma’@’localhost’ issue.

To resolve that problem, go to phpMyAdmin, and click on the top left "Empty Session Data" icon like the following screenshot. The issue will be settled.

How to prevent loading react UseEffect twice?

If you are facing an issue of loading react UseEffect twice, then go to your application "src>>index.js" file. You will get the code like the following snippets. Old React Code Remove that old react code by the following snippets. New Code It will solve the issue. Happy coding!